OBJECTIVE Xingnaojing injection(XNJ)is an extracts of Angong Niuhuang Pill that is a well-known traditional Chinese medicine used for the treatment of septicemia and stroke.This study aims to investigate the effect of XNJ on intestinal mucosal barrier in septicemia and intracerebral hem-orrhage(ICH)mice models.METHODS The septicemia mice models were induced by intravenous in-jection with lipopolysaccharide(20 mg·kg-1).And the ICH mice models were made by intrastriatal injec-tion of bacterial collagenase. The septicemia animals were treated intravenously with XNJ at dose of 2.5,5,10,or 15 mL·kg-1.The ICH animals were treated intravenously with XNJ at dose of 10 mL·kg-1. Thereafter, the permeability of intestinal mucosa was assayed by FITC-D method. RESULTS Com-pared with the control group(44.72±4.30),the permeability of intestinal mucosa in the mice in septice-mia group (233.68±28.18) was significantly increased (P<0.01). Treatment with XNJ at dose of 5, 10, and 15 mL·kg-1reduced the permeability of intestinal mucosa (150.45 ± 17.52,139.21 ± 17.05,132.55 ± 18.88,respectively, P<0.01)except 2.5mL·kg-1(240.71±21.42,P>0.01);Compared with sham group (57.88±7.31),the permeability of intestinal mucosa in the mice of ICH(282.25±23.78)was significantly in-creased(P<0.01). Treatment with XNJ (10 mL·kg-1)in the mice of ICH group ameliorated the change of permeability in intestinal mucosa (148.83±15.86, P<0.01). CONCLUSION XNJ exhibits the protec-tive effect on the intestinal mucosal barrier in septicemia and ICH, which will prevent the endotoxin to penetrate the intestinal mucosa and then to enter the circulation in infections and stress.

ObjectiveTo investigate the unfavorable factors of intestinal mucosa repair after the intestinal epithelial injury in vivo in a mouse model of sepsis. MethodsThe method of cecal ligature and puncture (CLP) was used to induce sepsis and then the intestinal mucosa damage, epithelial cell apoptosis and the number of transformed goblet cells were observed, and the concentrations of serum TNF-αt, IL-1 and TGF-β1 and TFF3 ( trefoil factor 3) in small intestinal mucosa were determined. All above various laboratory examinations were made by different assays including H-E staining, western blot, ELISA and immunohistochemistry respectively. The experimental mice were divided into sepsis group and sham operation control group. The mice with sepsis were separately sacrificed 6 hours ( n = 7 ), 24 hours ( n = 7) and 48 hours ( n = 7) after CLP. Results In septic mice group, the injured intestinal mucosa was found 6 hours after CLP. The damage scores in mice 24 h and 48 h after CLP were higher than those 6 h after CLP, but there was no significant difference between those 24 h and 48 h after CLP. Moreover, a few goblet cells or other epithelial cells adjacent to the injured surface migrated onto the wound to cover the denuded area. The number of goblet cells was substantially decreased in mice of sepsis group 6 hours after CLP compared with sham operation control group. Compared with sham operation control group, levels of IL-1 and TNF-α significantly increased 3-4 times in mice of sepsis group at all intervals, and the phosphorylated caspase-3 increased 4 times. Although TFF3 assayed by using Western blot showed modest increase 6 h after CLP and it declined 24 h and 48 h later. A similar change was found in TGF-β1, it modestly increased 6h after CLP, but it didn't elevate 24 h and 48 h later. ConclusionsSevere sepsis keeps on the inflammatory reaction and epithelial cell apoptosis, preventing the repair of intestinal mucosa from injury.

OBJECTIVE To investigate the effect and mechanism of AngongNiuhuang Pill(AGNH) on neurological function and intestinal mucosal barrier in intracerebral hemorrhage (ICH). METHODS Male CD-1 mice were randomly divided into sham, ICH, AGNH 0.1 g·kg-1, AGNH 0.2 g·kg-1, and AGNH 0.4 g·kg-1groups. The ICH mice models were prepared by intrastriatal injection with collage-nase using a stereotaxic frame.Garcia test was used to evaluate the neurological function of mice.The brain water content was measured with dry/wet weight method.The permeability of intestinal mucosa was detected by FITC-D method. H&E staining was used to observe the pathological changes of intestine. The content of endotoxin in blood and the expressions of ZO-1,occludin in intestinewere also investigated.RESULTS After AGNH administration,the neurological score of mice was increased,and the brain water content was decreased(P<0.01).AGNH attenuated the ICH-induced increase of perme-ability of intestinal mucosa(P<0.01).Treatment with AGNHnot only alleviated the pathological changes of the intestine but alsoreduced the endotoxin content in blood (P<0.01).The expressions of ZO-1, occludinin AGNH groups were significantly increased compared with that of ICH group (P<0.05). CONCLUSION AGNH improves the neurological dysfunction in ICH mice and the mechanism of action is implicated in protecting the intestinal mucosa.

AIMTo explore the effects of gentamicin ototoxicity on the expression of heat shock protein 70 in guinea pigs cochlea.

METHODSWe used immunohistochemistry staining and image quantitative analysis system, combined with auditory brainstem response (ABR) measurement to investigate the change on the expression of HSP70 in guinea pigs cochlea of gentamicin ototoxicity.

RESULTSThe levels of HSP70 immunoreactivity in guinea pigs cochlea of experimental animals were high including Corti's organ, stria vascularis, medial spiral limbus, spiral ganglion cells and the threshold of ABR was in high correlation with the expression of HSP70 ([ r] > 0.8, P < 0.01).

CONCLUSIONGentamicin can induce expression of HSP 70 in guinea pigs cochlea and protect hearing function.

Animals ; Cochlea ; drug effects ; physiopathology ; Gentamicins ; toxicity ; Guinea Pigs ; HSP70 Heat-Shock Proteins ; metabolism ; Heat-Shock Response ; drug effects

To examine the significance of heat shock protein 70 mRNA in ototoxicity resulted from gentamicin (GM), twenty healthy albino guinea pigs (200-250 g) of either sex with a positive Prier reflex were divided into two groups randomly. In GM group the animals received 100 mg/kg GM daily by intraperitoneal injection for 10 d. In saline control group the animals received 2.5 ml/kg saline daily by intraperitoneal injection for 10 d. Auditory brainstem response (ABR) thresholds were recorded in each animal before and 1 d after GM or saline administration. After the second ABR measurement, the expression of HSP70 mRNA in guinea pig cochlea was observed with in situ hybridization and image quantitative analysis system. The results showed that the threshold of ABR in the GM group was significantly higher than that of the saline control (P< 0.001). The expression of HSP70 mRNA was more intensive in stria vascularis, spiral ligament and spiral ganglion cells in the GM group than that of the saline control group. These results suggest that administration of gentamicin can induce the expression of HSP 70 mRNA in guinea pig cochlea, and that this effect may protect hearing function from ototoxicity.
Animals ; Cochlea ; metabolism ; Evoked Potentials, Auditory, Brain Stem ; physiology ; Female ; Gentamicins ; toxicity ; Guinea Pigs ; HSP70 Heat-Shock Proteins ; biosynthesis ; genetics ; Male ; RNA, Messenger ; biosynthesis ; genetics ; Random Allocation

BACKGROUND:The intestine is not only the main target attacked by sepsis but also the vital organ which mediated sepsis. The recovery of the damaged intestinal barrier structure and function is related to the occurrence and outcome of multiple organ dysfunction syndrome (MODS). How to protect and reduce the damage of the intestinal mucosa and how to promote the reconstruction of the intestinal mucosa have been the important topics in sepsis for many years. This study aimed to investigate the influential factors of intestinal mucosal reconstruction after intestinal epithelial injuryin vivo in a mouse model of sepsis.METHODS:Mice were subjected to cecal ligation and puncture (CLP) for induction of sepsis to assess intestinal mucosal damage, epithelial cell apoptosis, and transformed number of goblet cells, and to detect the concentration of TNF-α, IL-1 and TGF-β1 and TFF3 (trefoil factor 3) expression in the small intestinal mucosa. All above were performed by HE staining, western blot, ELISA and immunohistochemistry respectively. The experimental animals were divided into a sepsis group and a sham-operation group. The animals with sepsis were separately killed at 6 (7 animals), 24 (7 animals) and 48 hours (7 animals) after CLP.RESULTS:Injured intestinal mucosa was observed in the 3 groups under a light microscope, in which damage scores in the 24-hour and 48-hour groups were higher than in the 6-hour group and no difference was found between the two groups. Moreover, less of goblet cells or other epithelial cells adjacent to the injured surface migrated into the wound to cover the denuded area. The number of goblet cells was substantially decreased in the three CLP groups compared with the sham-operation group. Protein levels of IL-1 and TNF-α were significantly increased by 3-4 fold at all time points when compared with the sham-operation group, and cleaved caspase-3 by 4 fold. Although TFF3 expression was modestly increased for 6 hours after the onset of CLP, it appeared to decline at 24 hours and 48 hours as shown by Western blot. A similar tendency was observed upon TGF-β1, i.e. the protein level was not elevated at 24 hours and 48 hours, but increased modestly at 6 hours.CONCLUSIONS:Sepsis from CLP shows less restitution on the surface of injured intestinal mucosa. There is evidence that both constant inflammatory reaction and epithelial cell apoptosis may affect mucosal reestablishment of the intestine at the onset of sepsis. Mucosa after severe sepsis showed the state of high inflammation, and declined goblet cell function and mucosal reconstruction, which affected the repair of damaged intestinal barrier. Constant inflammatory reaction, and declined goblet cell function and mucosal reconstruction ability may affect the reestablishment of intestinal mucosa at the onset of sepsis.

Objective To explore the correlationships between microperfusion diffusion indexes derived from intravoxel incoherent motion(IVIM)and perfusion values measured by arterial spin labeling (ASL)in renal allograft. Methods A total of 76 renal allograft recipients and 26 age-matched volunteers (group 0)were included in this prospective study. All subjects were underwent conventional MRI, IVIM and ASL MRI which were performed in the oblique-sagittal plane. Seventy-six recipients were divided into two groups based on the estimated glomerular filtration rate(eGFR):recipients with good allograft function(group 1, eGFR≥ 60 ml · min-1 · 1.73m-2,n=44)and recipients with impaired allograft function(group 2, eGFR<60 ml · min-1 · 1.73m-2,n=32). Three IVIM indexes values, including true diffusion coefficient(ADCslow), pseudo-diffusion coef fi cient(ADCfast), perfusion fraction(PF), and one ASL index value of renal cortex(renal blood flow, RBF)were measured. One-way analysis of variance and the least significant difference were used to compare the different of each cortical index values among three groups. Correlations between the ADCslow, ADCfast, PF, RBF and eGFR as well as the correlation among the indexes were evaluated using Pearson correlation coefficients. Results For cortical ADCslow, ADCfast, PF and RBF values, allografts with good function and impaired function showed significantly differences compared healthy controls(all P<0.01). In allografts with good function, cortical ADCslow,ADCfast,PF showed no significantly differences compared with controls(all P>0.05), but RBF value was significantly lower(P<0.05). The ADCslow, ADCfast, PF and RBF values of renal cortex were significantly lower in allografts with impaired function compared to allografts with good function(all P<0.01). In renal allografts, there were significant positive correlations between cortical ADCslow, ADCfast, PF, RBF value and eGFR(r values were 0.604, 0.552, 0.579 and 0.673, all P<0.01). Cortical ADCfast and PF value exhibited a significant correlation with RBF for recipients(r values were 0.501 and 0.423, all P<0.01). Conclusion Cortical ADCfast and PF values derived from IVIM and RBF measured by ASL show a significant positive correlation in renal allografts.

OBJECTIVETo make the kit with witch to identify Penis et Testis Cervi with molecular taxonomy.

METHODThe mtDNA of sika and red deer from different areas was amplified by PCR and sequenced. Compared with the mtDNA of bovine and horse from witch the false medicines were made, characteristic segments of deer were found. We selected one as the species distinctive PCR primer of deer.

RESULTThe kit made up with this primer and related reagents could be used to discern Penis et Testis Cervi from the false medicine.

CONCLUSIONIt is a scientific, steady, accurate and convenient way to identify Penis et Testis Cervi with molecular taxonomy.

Animals ; Cattle ; genetics ; DNA ; genetics ; DNA Primers ; DNA, Mitochondrial ; genetics ; Deer ; classification ; genetics ; Drug Contamination ; Horses ; genetics ; Male ; Materia Medica ; chemistry ; Penis ; chemistry ; Testis ; chemistry

Objective To explore the efficacy and safety of Solitaire stents and the multi-mode vascular recanalization in the treatment of acute cerebral infarction. Methods Twenty-two patients with acute cerebral infarction, who were treated by Solitaire stents and the multi-mode vascular recanalization (research group) in our hospital from November 2014 to February 2017, were included in this study. Among them, 16 cases were combined with balloon dilation after arterial thrombosis, 4 cases were given stent implantation (3 cases were given Solitair stent and 1 case was given Apollo stent), and 2 cases were given arterial catheter directed thrombolysis. Eighteen patients with acute cerebral infarction who were treated only by Solitaire stent artery occlusion from October 2011 to October 2014 were used as control group. Data of the onset to the vagina vasorum time, the onset to the recanalization time, the revascularization of interventional therapy, the NIHSS scores at admission and discharge, mRS score after 90-day treatment, incidence rate and the mortality were compared between two groups. Results There were no significant differences in the durations from onset to the vagina vasorum and from the onset to the recanalization between the two groups. The recanalization was better in research group than that of control group (P<0.05). There were no significant differences in scores of NIHSS at hospital discharge and admission between two groups. The near-term treatment efficacy was similar in two groups. However, mRS score was significantly lower in the research group than that in control group after 90-day treatment (P<0.05). There were no significant differences in the symptomatic intracranial hemorrhage, high perfusion encephalopathy, the incidence rate and the mortality rate of the complications related to the operation between two groups of patients. Conclusion Solitaire stents and the multi-mode vascular recanalization can significantly improve the revascularization, the further clinical prognosis and the quality of survival in patients with acute cerebral infarction, which are safe and efficacy without increasing incidence rate and mortality rate of complications.

OBJECTIVETo study the expression of Aurora-B in human glioma tissue and its significance.

METHODSThe total RNA was extracted from 41 human glioma tissues and 11 normal brain tissues by Trizol reagent. After reverse transcription of the total RNA into cDNAs, Aurora-B mRNA expressions in these samples were detected by quantitative real-time PCR. The protein expression in these samples was detected using immunohistochemical staining.

RESULTSAurora-B mRNA and protein expressions were significantly increased in glioma tissues as compared with those in normal brain tissues.

CONCLUSIONAurora-B mRNA and protein show markedly higher expressions in glioma tissue, suggesting that Aurora-B may be one of the malignant biomarkers in the pathogenesis and progression of human glioma.

Aurora Kinase B ; Aurora Kinases ; Biomarkers, Tumor ; metabolism ; Brain Neoplasms ; enzymology ; pathology ; Female ; Glioma ; metabolism ; pathology ; Humans ; Male ; Protein-Serine-Threonine Kinases ; genetics ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Tumor Cells, Cultured